Bobbin holder suspension means



March 1961 T. L. KUCMEROSKY 2,973,920

BOBBIN HOLDER SUSPENSION MEANS Filed Feb. 26, 1959 m M w H INVENTOR. WITNESS: Jfieovfiwue United States Patent .0

Theodore L. Kucmerosky, Elmira, N.Y., assignor to The Bendix Corporation, a corporation of Delaware Filed Feb. 26, 1959, seems; vespso .4. Claims. .(Cl..242-'130.2)

The present invention relates to a frictional tension.

regulating device for textile bobbins and more particularly to an improved form of the bar brake mechanism disclosed in the patent to Man 2,109,543 issued March 1, 1938.

In the Mann patent cited there is disclosed a pendulous antifriction bobbin holder with means for controlling rotation thereof in the form of a curved bar brake. The bar is hingedly clamped to the creel board above the bobbin holder, and bears frictionally on the surface of the yarn package mounted on said holder to maintain a suitable tension on the yarn as it is unreeled from the package.

It is an object of the present invention to provide a novel simplified form of bar brake and mounting means therefor, which is efficient in operation and economical in construction. I

It is another object to provide such a device in which the mounting means for thebar brake is formed to serve as a wrench for adjusting the attachment of'the bobbin holder to the supporting creel member.

It is another object to provide such a device in which the upper end of the 'bar brake has a quick detachable pivotal attachment to the mounting means.

It is another object to provide such a device in which .the bar brake serves as a handle for the wrench constituted by said mounting means.

It is another object to provide such a device in which the mounting means for the bar brake serves as a dust excluding cap for the bobbin holder.

Further objects and advantages will be apparent from the following description taken in connection with the accompanying drawing in which:

Fig. 1 is a side elevation, partly broken away and in section of a preferred form of applicants bar brake and mounting means as used in conjunction with a pendulous bobbin holder;

Fig. 2 is a sectional view of applicants mounting means and dust cap, taken substantially on the line 22 of Fig. l; and

Fig. 3 is a detail in side elevation of the bar brake and mounting means as viewed from the left in Fig. 1.

In Fig. 1 of the drawing there is illustrated a creel frame member 1 in the form of a channel bar. It will be understood that this member, here shown in section, extends lengthwise of the spinning frame to act as the support for a plurality of bobbin holders in the conventional manner. The lower surface of the creel member 1 is substantially flat and is drilled or slotted for the reception of a bolt 2, the stem of which engages a nut member 3 seated in the creel member. The lower end of the bolt 2 is formed with a head 4 having a spherical surface on which a bobbin holder 5 is rotatably mounted by means of balls 6. A bobbin 7 is detachably mounted on the holder 5 and is adapted to carry a wound yarn package 8 which is thus pendulously hung from the creel member 1 with freedom for rotation and some universal motion. Since the structure so far disclosed is now 2 7 conventional, further description thereof isdeemed 'ununnecessary. Y

The bolt 2 is formed with a shoulder 9.spaced from the head 4, and has a smooth flattened or double D section above the shoulder. A cup-shaped mounting member and dust cap 11 having a central opening 12 slidably conforming to the flattened section of the bolt 2 is mounted on said bolt against the shoulder 9 where it loosely surrounds and protects the upper end of the bobbin holder 5, Thefupper surface of the mounting member 11 is flat and is clamped againstthe lower surface of the creel member 1 when the bolt 2 is threaded into the nut 3.

The mounting member 11 is formed with laterally extending ears 13, which ears are traversed by horizontal bearing openings 14. A bar brake member 15 has an end portion 16 bent at right angles to the length of the bar and arranged to be journalled in one of said openlugs 14 whereby the bar is hinged to the mounting member 11 for radial movement toward and from the axis of the bobbin 7. The lower end of the bar brake is bent as shown at 17 in Fig. 1, so as to bear frictional'ly under the effect of gravity on the outer surface of the yarn package 8.

The free end of the bent portion 16 of the bar brake 15 protrudes beyond the car 13 of the mounting member 11 and has a radial projection 18 formed thereon as by means of a press operation. The ear 1 3 has a slot 19 traversing the ear and extending radially from the bearing opening 14, said slot being formed to freely permit passage of the projection 18 therethrough as the bar brake is inserted in'the support member. The projection 18 and slot 19 are so oriented that they are brought into registry when the bar brake is raised to approximately a horizontal position.

In the operation of the device, the bobbin holder 5 is assembled by first placing the mounting member 11 on the bolt 2, and then threading said bolt up into the .nut 3 in the creel member 1, the bolt being conveniently tightened by using the mounting member as a means for rotating the bolt similarly to a wrench. A'bar brake 15 is then inserted in one of the openings 14 in the mounting member 11, while in a raised position to permit the projection 18 to traverse the slot 19 in which raised position it forms a convenient handle for finally tightening up the bolt 2. As the bar brake is lowered, the projection 18 moves out of registry with the slot 19 and thereafter prevents displacement of the bar brake from the holder 11.

It will be understood that the quick detachable connection for the bar brake permits instant replacement of the bar brake without disturbing the mounting of the bobbin holder, and allows the use of more than one bar brake in unusual circumstances, if so desired.

Although but one form of the invention has been shown and described in detail, it will be understood that changes may be made in the form and arrangement of the parts without departing from the spirit of the ing means and a bearing mounted on the other extremityv of said bolt member, shoulder means provided on said bolt member adjacent said bearing, said bolt member having a non-circular portion intermediate said threaded extremity and said shoulder, a combination mounting member and dust cap'slidably journalled on such non;

Patented Mar. 7,

circular portion oi said bolt member surrounding said bearing and means detachably connected to said mounting member for rotating said pendulous support into and out of engagement with said fastening means. 2. A device as set forth .in claim 1 in which the totating means connected to the mounting member comprises a bar brake having at one end apivotal connection with the mounting member providing for vertical pivoting vof the bar brake and to transmit torsional forces to said mounting member. 3. A device as set forth in claim 2 in which the mounting member is formed with a laterally extending ear traversed by a horizontal bearing opening, said bar brake having said one end bent at a right angle and iournalled in said hearing opening.

4. A device as set forth in claim 3 in which said ear is formed with a slot extending radially from the hearing opening, and said one end of the bar brake has a radial projection slidably traversing said slot and emerging beyond said ear when the bar brake is inserted in said bearing, said slot and projection being so oriented that they are brought into registry when the bar brake is raised above a substantially horizontal position.

References Cited in the file of this patent UNITED STATES PATENTS 577,417 Buchanan Feb. 23, 1897 659,042 Taylor et a1. Oct. 2, 1900 2,445,542 Strozinski July 20, 1948 

